Datasheet

BLEScanner

The BLEScanner class is used in Central Mode, and facilitates scanning for BLE peripherals in range and parsing the

advertising data that is being sent out by the peripherals.

The BLEScanner class is normally accessed via the Bluefruit class (instantiated at startup), as shown below:

API

BLEScanner has the following public API:

The Bluefruit nRF52 Feather codebase is in an early BETA stage and is undergoing active development

based on customer feedback and testing. As such, the class documentation here is incomplete, and you

should consult the Github repo for the latest code and API developments: https://goo.gl/LdEx62

This documentation is based on BSP 0.7.0 and higher. Please make sure you have an up to date version

before using the code below.

/* Start Central Scanning

* - Enable auto scan if disconnected

* - Filter for devices with a min RSSI of -80 dBm

* - Interval = 100 ms, window = 50 ms

* - Use active scan (requests the optional scan response packet)

* - Start(0) = will scan forever since no timeout is given

Bluefruit.Scanner.setRxCallback(scan_callback);

Bluefruit.Scanner.restartOnDisconnect(true);

Bluefruit.Scanner.filterRssi(-80); // Only invoke callback when RSSI >= -80 dBm

Bluefruit.Scanner.setInterval(160, 80); // in units of 0.625 ms

Bluefruit.Scanner.useActiveScan(true); // Request scan response data

Bluefruit.Scanner.start(0); // 0 = Don't stop scanning after n seconds